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How Damaging is Radiation?

Video vocabulary

mean

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US / mi:n /

UK / min /

A1
  • adjecitve
  • Being good at
  • Nasty; unkind
  • Not liking to spend money; cheap; stingy
  • noun
  • Average of a set of numbers
  • verb
  • To express a particular idea or thought
  • To intend to do something in particular
  • To have a particular meaning or value

down

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US / daʊn /

UK / daʊn /

A1
  • adjecitve
  • Being sad, sick, or unhappy
  • Not operating, working, or functioning as expected
  • adverb
  • In a sitting or lying position
  • Towards or on the ground, floor, or bottom
  • Written or copied onto a piece of paper or book
  • noun
  • A period of play in American Football
  • The soft, smooth hairs that cover a bird's body
  • preposition
  • Along something's path, course, or direction
  • Going from a higher position to a lower position
  • verb
  • To eat or drink very quickly and without stopping

about

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US / ə'baʊt /

UK / əˈbaʊt /

A1
  • adverb
  • To be ready to; going to
  • Nearly; approximately; roughly
  • Near; next to; close to
  • In every direction; in the area of
  • preposition
  • Concerning or of (a topic)

dna

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US / ˌdiː en ˈeɪ /

UK / ˌdiː en ˈeɪ /

B2
  • noun
  • Chemical in living cells with genetic information

geiger

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US / ˈɡaɪɡə /

UK / ˈɡaɪɡər /

A1
  • other

tell

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US / tel /

UK / tɛl /

A1
  • verb
  • To (strongly) advise a person to do something
  • To be able to guess
  • To say or communicate information to someone
  • To inform, but without speaking; indicate
  • To have a negative effect on someone
  • To order someone to do something; command
  • To recognize something based on certain signs
  • To report something to an authority
  • To explain something or teach someone something

great

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US / ɡreɪt /

UK / ɡret /

A1
  • adjecitve
  • Very large in size
  • Very important
  • Very good; fantastic; wonderful
  • adverb
  • Very good; better than before
  • noun
  • Successful and well-admired person

alpha

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US / ˈælfə /

UK / 'ælfə /

B1
  • adjecitve
  • Most powerful (animals of the same sex)
  • noun
  • First letter in the Greek alphabet

block

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US / blɒk /

UK / blɑk /

A2
  • noun
  • Solid piece of material used for building
  • A piece of wood, chocolate etc.
  • Hard piece of wood, stone etc. with straight edges
  • Building made up of offices or apartments
  • Area of a city divided by four streets
  • verb
  • To stop from going forward or making progress

include

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US / ɪnˈklu:d /

UK / ɪnˈklud /

A1
  • verb
  • To make someone, something part of a group

even

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US / 'i:vn /

UK / ˈivən /

A1
  • adjecitve
  • Being equal in influence, power, possibility etc.
  • Being divided equally or fairly
  • (Of teams/contest) with similar chances of success
  • Smooth, level, or regular
  • Can be divided by 2; ending in 2, 4, 6, 8, or 0
  • At a regular, equally steady manner
  • Remaining steady and unchanging
  • adverb
  • (When this is surprising) as well; too
  • (Used to compare two things/stress the difference)
  • verb
  • To make something level; to flatten
  • To make something equal

similar

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US / ˈsɪmələ(r) /

UK / ˈsɪməlɚ /

A1
  • adjecitve
  • Nearly the same; alike

fly

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US / flaɪ /

UK / flai /

A1
  • noun
  • Common flying insect, sometimes blue in color
  • Opening with fold of cloth hiding zipper on pants
  • verb
  • To move in the wind, e.g. a flag
  • To move at a high speed
  • To travel in a plane, helicopter, balloon etc.
  • To pilot people or items by plane
  • To travel through the air using wings

dose

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US / dəʊs /

UK / doʊs /

B1
  • noun
  • An amount of medicine to be taken at any one time
  • verb
  • To give a certain amount of something to someone

different

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US / ˈdɪfrənt /

UK / ˈdɪfrənt /

A1
  • adjecitve
  • Not of the same kind; unlike other things

yeah

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US / jeə /

UK / ˈjɛə, ˈjæə, jɛ- /

A1
  • exclamation
  • Another way of saying 'yes'

type

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US / taɪp /

UK / taɪp /

A1
  • noun
  • Printed letters or blocks used for printing them
  • Group of things or people sharing common features
  • verb
  • To identify something belonging to a group
  • To write by touching keys on a keyboard

cause

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US / kɔ:z /

UK / kɔz /

A2
  • noun
  • Belief, goal or organization that people support
  • Reason for
  • verb
  • To make something happen; create effect or result

example

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US / ɪgˈzɑ:mpl /

UK / ɪɡˈzæmpəl /

A1
  • noun
  • Thing, person which represents a category

get

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US / ɡet /

UK / ɡɛt /

A1
  • verb
  • To become affected by illness or disease
  • To begin to feel or understand an emotion or idea
  • To send or bring someone or something home, etc.
  • To go somewhere to obtain something
  • To (cause to) do a particular thing
  • To obtain, receive or be given something
  • To currently have
  • To prepare for use
  • To understand something being said or read

cell

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US / sel /

UK / sɛl /

A2
  • noun
  • Smallest unit of living things in biology
  • Group of people - often from a secret organization
  • Prisoner's room in a jail
  • Shortened form of 'cellphone'

what

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US / wɒt /

UK / hwɑt, hwʌt, wɔt, wʌt,hwət, wət /

A1
  • pronoun
  • Thing or things that; the same kind as
  • Used to emphasize something you are about to say
  • adjecitve
  • Used to refer to a particular amount, or number
  • Used to place emphasis on a particular quality
  • adverb
  • To a certain degree
  • determiner
  • Question words used for asking for information
  • exclamation
  • Used to express excitement, shock, or surprise
  • Used to ask people to repeat something they said

right

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US / raɪt /

UK / raɪt /

A1
  • adjecitve
  • Correct or true
  • The south side of you looking at the rising sun
  • adverb
  • Exactly in a place or time
  • Being appropriate for a particular event
  • In a straight or direct manner
  • noun
  • Something you are legally or morally allowed to do
  • Ideal of what is just and good
  • Political view based on conservatism
  • verb
  • To fix something previously wrong or unjust
  • To make upright, as a boat that has turned over

people

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US / 'pi:pl /

UK / ˈpipəl /

A1
  • noun
  • Persons sharing culture, country, background, etc.
  • Men, Women, Children

then

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US / ðen /

UK / ðɛn /

A1
  • adverb
  • A time that is not now
  • Following another thing in time or arrangement
  • Following on reasonably from what was just stated
  • At that time, not now

that

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US / ðæt /

UK / ðæt, ðət /

A1
  • adjecitve
  • The person or thing being talked about
  • Used to identify something both the speakers know
  • adverb
  • Used to reinforce adjectives and adverbs
  • To such a degree
  • conjunction
  • Used to connect a noun clause
  • Used to introduce an adverbial clause
  • Used to introduce a noun clause
  • determiner
  • Used as a noun to refer to something
  • pronoun
  • Referring an object far away
  • Used to refer to the relative pronoun ‘which’

dentist

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US / ˈdentɪst /

UK / ˈdɛntɪst /

B1
  • noun
  • Person whose job is to take care of people's teeth

tissue

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US / ˈtɪʃu: /

UK / ˈtɪʃu /

A2
  • noun
  • Substance formed by cells of living thing; flesh
  • Kind of thin, light paper used to pack objects
  • Thin soft paper for blowing the nose, etc.

like

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US / laɪk /

UK / laɪk /

A1
  • adjecitve
  • Being equal in status or kind to something else
  • Similar; the same
  • adverb
  • For example
  • preposition
  • Used as a filler; used to ad emphasis
  • In a way similar to the way something is done
  • Such as; for example
  • verb
  • To want to
  • To find something pleasing; to prefer something

tumour

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US / ˈtju:mə(r) /

UK / ˈtuːmər /

B1
  • noun
  • Abnormal growth of cells; cancer

they

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US / ðeɪ /

UK / ðe /

A1
  • pronoun
  • Two or more people, animals, or things

move

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US / mu:v /

UK / muv /

A1
  • noun
  • Act of moving a playing piece in chess, etc.
  • An action; doing something
  • Step taken to achieve a goal
  • verb
  • To cause someone to have certain emotions
  • To cause something to change to a different place
  • To change where people live or a business operates
  • To take action to do or achieve something

beta

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US / 'bi:tə /

UK / 'beɪtə /

B2
  • noun
  • Test version of a product or software

look

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US / lʊk /

UK / lʊk /

A1
  • noun
  • Person's beauty or physical attractiveness
  • Particular style of dress, clothes, or appearance
  • The way someone, something appears to be
  • Act of searching for or examining something
  • verb
  • To appear to be; seem

between

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US / bɪˈtwi:n /

UK / bɪˈtwin /

A1
  • preposition
  • From one person, thing, or place, to another
  • In the space that separates two objects
  • Among two or more people who share something

change

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US / tʃeɪndʒ /

UK / tʃendʒ /

A1
  • noun
  • Exchange of one set of clothes for another
  • Money in the form of coins instead of paper
  • Money returned after giving too much
  • Act of making or becoming something else
  • verb
  • To exchange one set of clothes for another
  • To exchange one kind of money for another
  • To replace something with another thing
  • To make or become something else
  • To go from one train, bus, etc. and go to another

space

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US / speɪs /

UK / spes /

A1
  • noun
  • Empty area kept for a specific reason, like a car
  • Empty area with nothing in it
  • Area in the sky where the stars are
  • Area between written words on a page
  • verb
  • To make a certain distance or time between

damage

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US / ˈdæmɪdʒ /

UK / ˈdæmɪdʒ /

A2
  • noun
  • Physical harm that is done to something
  • verb
  • To harm physically; to hurt or break something

absorb

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US / əb'sɔ:b /

UK / əbˈsɔrb, -ˈzɔrb /

B1
  • verb
  • To take up all attention / energy of something
  • To take in a liquid; soak up

take

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US / teɪk /

UK / tek /

A1
  • noun
  • Filming of a single scene for TV or the movies
  • verb
  • To accept something that is offered
  • To use a method of traveling, e.g. a bus or train
  • To use a camera to make (a photo)
  • To pick up something and go away with it
  • To study a subject in school
  • To attempt to pass (an exam)
  • To require a certain amount of time, money, space

all

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US / ɔ:l /

UK / ɔl /

A1
  • adverb
  • Completely; totally
  • determiner
  • Being every one of something
  • pronoun
  • 100% of something; the complete amount

way

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US / weɪ /

UK / we /

A1
  • adverb
  • Used to emphasize the amount of something
  • noun
  • Particular aspect of something being thought about
  • One of various choices that could be made
  • Particular existing condition or state
  • (Often long) distance or length of time
  • How something is done
  • Route to go to a place
  • Small street
  • Usual behavior, emotions or habits of someone

very

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US / 'verɪ /

UK / ˈvɛri /

A1
  • adjecitve
  • Concerning a large degree or amount
  • adverb
  • A lot; much; many
  • Used to stress or emphasize a noun

human

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US / 'hju:mən /

UK / ˈhjumən /

A1
  • adjecitve
  • Concerning or characteristic of people
  • noun
  • A person; a man, woman or child

pocket

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US / 'pɒkɪt /

UK / ˈpɑkɪt /

A2
  • adjecitve
  • (As if) small enough to fit in your pocket
  • noun
  • Small cloth bag sewn into clothing to hold things
  • Area of space
  • verb
  • To put something into your pocket
  • To take or hide something illegally

fast

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US / fɑ:st /

UK / fæst /

A1
  • adjecitve
  • In a way that is difficult to move or change
  • Moving or able to move quickly
  • Showing time that is later than the actual time
  • adverb
  • With a great deal of speed
  • noun
  • Period of time when a person chooses not to eat
  • verb
  • To refuse food for a long time

worry

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US / ˈwʌri /

UK / ˈwɜ:ri /

A1
  • noun
  • Something that causes trouble or concern
  • verb
  • To cause concern or trouble over something

whereas

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US / ˌweərˈæz /

UK / hwɛrˈæz, wɛr- /

A2
  • conjunction
  • Taking into consideration the fact that

background

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US / ˈbækgraʊnd /

UK / ˈbækˌɡraʊnd /

A2
  • noun
  • Images, color, or information behind the main one
  • Someone's personal work and educational history
  • A position not as important as the main event
  • Past events that influence things in the present

could

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US / kəd /

UK / kʊd /

A1
  • other
  • Past form of 'can' to mean have ability
  • Used to ask for something politely, or to offer

sun

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US / sʌn /

UK / sʌn /

A1
  • noun
  • Light and heat coming from a large star in the sky
  • Hot shining star the Earth moves around
  • verb
  • To lie in the sunshine and enjoy its warmth

honest

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US / ˈɒnɪst /

UK / ˈɑnɪst /

A2
  • adjecitve
  • Good, truthful, sincere, or faithful; trustworthy

recently

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US / ˈri:sntli /

UK / 'risṇtlɪ /

A1
  • adverb
  • Just a while ago; not long ago

exposure

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US / ɪk'spəʊʒə(r) /

UK / ɪkˈspoʒɚ /

A2
  • noun
  • Allowing light through a cameras lens onto film
  • Being talked about in the media
  • Act of making something that is secret known
  • Experience of something directly

dangerous

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US / ˈdeɪndʒərəs /

UK / ˈdendʒərəs /

A1
  • adjecitve
  • Involving the chance of hurt or damage; risky

with

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US / wɪð /

UK / wɪð, wɪθ /

A1
  • preposition
  • As an employee of a certain company
  • Against something or someone
  • By using something as a means
  • Due to; because of
  • Including
  • Possessing as a feature
  • Related to
  • (Of the manner/attitude by which you do something)
  • Used to express that people or things are together

break

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US / breɪk /

UK / brek /

A1
  • noun
  • Time you stop an activity before continuing
  • End of a relationship
  • An escape from a place such as a jail
  • (Lucky) advantage or benefit from something
  • Find a solution or answer to a problem or crime
  • Change in the weather
  • verb
  • To create a new record e.g. running the 100m dash
  • To form a crack in something
  • To burst or become damaged
  • To end a relationship
  • To escape from a place such as a jail
  • To train a wild animal e.g. a horse
  • To separate into pieces by force, or by dropping
  • To act against a law, rule, or promise
  • To become known suddenly, as in the news
  • To not do what you promised e.g. not keep promises
  • To solve a crime, or answer a problem
  • To stop functioning properly
  • To suddenly start, open or commence
  • To change in pitch suddenly, as in a voice
  • To fall on the shore, as in waves
  • To begin or change suddenly; the dawn or weather
  • To defeat by causing the person to lose their will

outer

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US / ˈaʊtə(r) /

UK / ˈaʊtɚ /

A1
  • adjecitve
  • Far away
  • Being farther away from the center
  • On or around something; away from the center

sunlight

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US / ˈsʌnlaɪt /

UK / ˈsʌnˌlaɪt /

A2
  • noun
  • Rays of light coming from the sun

low

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US / ləʊ /

UK / lo /

A1
  • adjecitve
  • Having a small quantity, supply, or amount
  • Being unhappy or unpleasant in attitude
  • Not high; being near the ground, or bottom
  • (Of a voice, sound) being soft; quiet
  • noun
  • Situation of not having a lot of something

know

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US / nəʊ /

UK / noʊ /

A1
  • verb
  • To be familiar with a person or place, thing
  • To feel sure or be convinced about something
  • To discover or be aware of something
  • To be able to distinguish
  • To have knowledge of things

group

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US / ɡru:p /

UK / ɡrup /

A1
  • noun
  • Two or more musicians who play music together
  • Number of people or things gathered together
  • verb
  • To combine or collect objects or people together

cosmic

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US / 'kɒzmɪk /

UK / ˈkɑzmɪk /

B2
  • adjecitve
  • Concerning space and the universe
  • Being so large, it is almost beyond understanding

seep

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US / si:p /

UK / sip /

B2
  • verb
  • To flow slowly through small openings or pores

have

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US / həv /

UK / hæv /

A1
  • verb
  • To drink, smoke, eat or use something
  • To experience the effects of something
  • To organize an event, or join in an activity
  • To own, possess, or hold something
  • To cause to happen or produce a particular effect

air

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US / eə(r) /

UK / er /

A1
  • noun
  • Mixture of gases around the earth that we breathe
  • A person's manner intended to impress others
  • verb
  • To expose to the outside, to dry or freshen
  • To broadcast a TV or radio show
  • To open a subject to discussion and debate

ruin

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US / 'ru:ɪn /

UK / ˈruɪn /

B1
  • verb
  • To damage or completely destroy something
  • To cause someone to lose their money or status
  • noun
  • Remains of a building that has been destroyed

kind

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US / kaɪnd /

UK / kaɪnd /

A1
  • adjecitve
  • In a caring and helpful manner
  • friendly and considerate
  • noun
  • One type of thing

into

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US / 'ɪntə /

UK / ˈɪntu /

A1
  • preposition
  • Moving or going inside something
  • In the same direction as; in the direction of
  • So as to become; taking the state of

level

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US / 'levl /

UK / ˈlɛvəl /

A2
  • adjecitve
  • (Sports) equal to another
  • Being steady and determined (e.g. a voice)
  • noun
  • Specific height of something
  • Amount of ability you have compared to others
  • Floor or deck within a building
  • Tool used to determine if something is lying flat
  • verb
  • To aim a gun at someone
  • To destroy a building; flatten an area completely
  • To make things flat or even
  • To make a score equal to another, in sports

the

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US / ðə /

UK / ðə /

A1
  • article
  • Used to refer to something already mentioned
  • Used to show there is only one of something
  • determiner
  • Used to describe all of a family

body

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US / ˈbɒd.i /

UK / ˈbɑdi /

A1
  • noun
  • An object distinct from other objects
  • A group of people involved in an activity together
  • Main part of something
  • A person's physical self

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

A1
  • adverb
  • In addition; too; in a similar way

you

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US / jʊ /

UK / ju /

A1
  • pronoun
  • Person someone is speaking or writing to
  • Person or people in general

how

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US / haʊ /

UK / haʊ /

A1
  • adjecitve
  • To what degree? in what amount?
  • adverb
  • (Used to explain the way to do something)
  • exclamation
  • For what purpose or reason?
  • (Used to ask someone or something's condition)

this

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US / ðɪs /

UK / ðɪs /

A1
  • adjecitve
  • Used to indicate something already been discussed
  • Used to indicate something happening around now
  • adverb
  • An indication by a physical motion or gesture
  • A specific amount of
  • determiner
  • Person, thing, or idea near you
  • pronoun
  • Person, thing that has already been discussed

let

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US / let /

UK / lɛt /

A1
  • verb
  • To allow someone to do something
  • Introducing a suggestion to do something together
  • To rent a house, etc. to others

power

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US / 'paʊə(r) /

UK / ˈpaʊɚ /

A1
  • noun
  • Legal or official right to perform certain actions
  • Ability to move forcefully and quickly
  • Energy of something (e.g. electricity or fuel)
  • Mathematical way to multiply a number
  • Condition of being in political control
  • Physical force, energy, and strength
  • verb
  • To give energy to something, e.g. by electricity
  • To move something forcefully and quickly

love

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US / lʌv /

UK / lʌv /

A1
  • noun
  • Person's name
  • A very strong feeling of affection
  • The person you care very deeply about
  • Strong, deep emotional and sexual attraction
  • verb
  • To care for and like someone very strongly, deeply
  • To like doing very much; enjoy greatly
  • To feel a strong emotional and romantic attraction

whatnot

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US / ˈwɒt.nɒt /

UK / ˈwɑːt.nɑːt /

C1
  • noun
  • Miscellaneous curios
  • And other similar things

banana

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US / bə'nɑ:nə /

UK / bəˈnænə /

A2
  • noun
  • Long curved yellow fruit with a white center

word

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US / wɜ:d /

UK / wɚd /

A1
  • noun
  • Unit of language that has a meaning
  • Promise
  • Short remark or piece of information
  • verb
  • To express something by choosing particular words

wall

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US / wɔ:l /

UK / wɔl /

A1
  • noun
  • High, flat side of a room or building

able

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US / 'eɪbl /

UK / ˈebəl /

A2
  • adjecitve
  • Skilled; good at something
  • Having the ability to do something

expose

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US / ɪk'spəʊz /

UK / ɪkˈspoʊz /

A2
  • noun
  • News article revealing secret information
  • verb
  • To make visible, without covering or protection
  • To allow light through a cameras lens onto film
  • To be talked about in the media
  • To make a secret known to the public
  • To experience something, often a harmful thing

bad

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US / bæd /

UK / bæd /

A1
  • adjecitve
  • Not good; wrong
  • Lacking in good morals; evil
  • No longer fresh; spoiled

fine

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US / faɪn /

UK / faɪn /

A2
  • adjecitve
  • Good, acceptable or satisfactory
  • Of high quality; made with great skill
  • In a careful or exact manner; into small pieces
  • Being of high quality
  • Good; okay; no problem
  • (Of weather) good; not raining
  • noun
  • Money you have to pay because you broke a rule
  • verb
  • To pay money because you broke a law

phone

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US / fəʊn /

UK / foʊn /

A2
  • noun
  • Machine used to talk to someone who is far away
  • verb
  • To talk to someone using a telephone

might

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US / maɪt /

UK / maɪt /

A1
  • other
  • Used to politely request an action
  • Used to express that something could happen
  • Power, strength, force or influence

mutation

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US / mju:'teɪʃn /

UK / mjuˈteʃən /

B2
  • noun
  • Change that changes genetic structure

mobile

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US / 'məʊbaɪl /

UK / ˈmoʊbl /

B1
  • adjecitve
  • Able to be moved or able to move
  • noun
  • Personal phone you take with you wherever you go

one

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US / wʌn /

UK / wʌn /

A1
  • pronoun
  • You; we; people in general; someone
  • The thing or person previously referred to
  • adjecitve
  • Used to refer to people generally
  • Being a strong example of (something mentioned)
  • number
  • Number 1

breathe

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US / bri:ð /

UK / brið /

A2
  • verb
  • To move air into and out of your lungs
  • To say something very softly
  • To stop moving so one can rest

arrange

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US / əˈreɪndʒ /

UK / əˈrendʒ /

A2
  • verb
  • To write music for a particular instrument
  • To organize things or people in a particular way
  • To plan (an event) at a time and place
  • To organize events so they happen

really

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US / ˈri:əli /

UK / ˈriəˌli, ˈrili /

A1
  • adverb
  • Used to stress something that is said; definitely
  • In a true or accurate manner
  • Very

carry

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US / ˈkæri /

UK / ˈkæri /

A1
  • verb
  • To have a child, be pregnant
  • To have a disease you might give to others
  • (Of stores) to sell a particular product
  • To hold something and move it to another place
  • To travel a long distance (sound)
  • To support the weight or burden of something

significant

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US / sɪgˈnɪfɪkənt /

UK / sɪɡˈnɪfɪkənt /

A2
  • adjecitve
  • Large enough to be noticed or have an effect
  • Having meaning; important; noticeable
  • (Statistics) being clearly different

towards

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US / tə'wɔ:dz /

UK / 'təuədz, twɔ:dz /

A1
  • preposition
  • In the direction of someone or something

not

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US / nɒt /

UK / nɑt /

A1
  • adverb
  • Word indicating the negative
  • (Used to form the negative of verbs)

dirty

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US / ˈdɜ:ti /

UK / ˈdɜ:rti /

A2
  • adjecitve
  • Not clean
  • Not fair; dishonest or dishonorable
  • verb
  • To make something not clean; soil

involve

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US / ɪn'vɒlv /

UK / ɪnˈvɑlv /

A2
  • verb
  • To have or be included as a part of something

good

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US / ɡʊd /

UK / ɡʊd /

A1
  • adjecitve
  • Proper, appropriate or right
  • (Of an amount) enough; plenty
  • Excellent; high quality
  • Acting well or properly; of moral character
  • In a positive or happy emotional state
  • noun
  • Advantage or benefit

can

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US / kæn /

UK / kən,kæn /

A1
  • noun
  • A metal container for storing food
  • other
  • Able to; have the skill to; have the time to
  • verb
  • To have permission to
  • To be possible to do
  • To preserve food by sealing it in a metal container

life

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US / laɪf /

UK / laɪf /

A1
  • noun
  • All the living things e.g. animals, plants, humans
  • Period of time things live, from birth to death

but

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US / bət /

UK / bʌt,bət /

A1
  • conjunction
  • Used before you say something different, opposite

concrete

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US / 'kɒŋkri:t /

UK / kɑnˈkrit, kɑŋ-, ˈkɑnˌkrit, ˈkɑŋ- /

B1
  • adjecitve
  • Concerning something that is physical or real
  • noun
  • Hard building material made of cement, sand, water
  • verb
  • To cover or make with a hard grey building material

tiny

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US / 'taɪnɪ /

UK / ˈtaɪni /

A2
  • adjecitve
  • Very, very small

potassium

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US / pəˈtæsiəm /

UK / pəˈtæsiəm /

B2
  • noun
  • A common, soft, silvery white metal with many uses

bone

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US / bəʊn /

UK / bon /

A1
  • noun
  • Hard piece of your body that holds your muscles
  • verb
  • To remove bones from meat or fish

give

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US / ɡɪv /

UK / ɡɪv /

A1
  • noun
  • Degree of flexibility in something, a material
  • verb
  • To hand over or present something to someone
  • To cause someone to have or experience something

generally

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US / /

UK / /

A2
  • adverb
  • Usually; as a rule; by, to or for most people

rearrange

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US / ˌri:ə'reɪndʒ /

UK / ˌriəˈrendʒ /

B1
  • verb
  • To rethink a plan, event for a time and place
  • To put into a new order for something to happen

radiation

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US / ˌreɪdiˈeɪʃn /

UK / ˌrediˈeʃən /

B1
  • noun
  • Energy transmitted as rays, waves or particles
  • Process of emitting something in waves
  • Harmful waves of energy from nuclear activity

normally

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US / ˈnɔ:məli /

UK / ˈnɔːrməli /

B1
  • adverb
  • In the manner that is usual or ordinary

out

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US / aʊt /

UK / aʊt /

A1
  • adverb
  • No longer stylish (e.g. fashion)
  • Away from home, business, or the usual place
  • In a direction/movement away from inside or center
  • noun
  • Act when a batter cannot continue playing
  • verb
  • To tell people a secret

affect

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US / ə'fekt /

UK / əˈfɛkt /

A2
  • verb
  • To cause a change in something else

leave

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US / li:v /

UK / liv /

A1
  • noun
  • Permission to do something
  • Vacation time; time off work
  • verb
  • To go away from; depart
  • To gift property to someone after you die
  • To allow something to continue happening
  • To let something remain unused or available
  • To let something or someone remain somewhere

wave

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US / weɪv /

UK / wev /

A2
  • noun
  • Movement of sound, air or energy
  • Deep and strong emotion that is suddenly felt
  • Slightly curved shape in hair
  • Frequency of movement of objects together
  • Up and down movement of water in a lake or sea
  • Signal with your hand to say hello or goodbye
  • verb
  • To cause to move side to side or back and forth
  • To swing back and forth as a result of the wind
  • To move your hand or arm to say hello or goodbye

put

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US / pʊt /

UK / pʊt /

A1
  • phrasal verb
  • to make a light stop shining by pressing or moving a switch
  • verb
  • To move or place a thing in a particular position
  • To rate something in importance or value
  • To write or say something in a certain manner

skin

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US / skɪn /

UK / skɪn /

A2
  • noun
  • Outer covering of an animal used for leather; hide
  • Outer covering of a fruit or vegetable
  • Outer layer of an animal or human
  • Outer part of an object, such as a plane
  • verb
  • To defeat someone easily and completely
  • To hurt yourself, accidentally cutting yourself
  • To remove the outer covering from an animal

rest

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US / rest /

UK / rɛst /

A1
  • noun
  • Time when one relaxes, sleeps, or is inactive
  • State in which there is a lack of motion
  • Part of something remaining after some was used
  • verb
  • To stop working or avoid activity to recover
  • (Of dead person) to lie in a grave
  • To lean, support or place something against
  • To not be tired because you had enough sleep

isotope

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US / ˈaɪsətəʊp /

UK / ˈaɪsətoʊp /

A1
  • noun
  • Chemical element nearly identical, but with differing weights

come

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US / kʌm /

UK / kʌm /

A1
  • verb
  • To arrive at a place
  • (Of mail) to be delivered
  • To move toward someone; go with someone
  • To reach a certain point or state

think

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US / θɪŋk /

UK / θɪŋk /

A1
  • verb
  • To have an idea about something without certainty
  • To have an idea, opinion or belief about something

another

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US / əˈnʌðə(r) /

UK / əˈnʌðɚ /

A1
  • adjecitve
  • One more, but not this
  • determiner
  • One more added
  • pronoun
  • One more (thing)

call

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US / kɔ:l /

UK / kɔl /

A1
  • noun
  • A order or request for action
  • The sound an animal makes, often when in danger
  • A correct prediction, e.g. a decision in a game
  • A short visit to a place or person
  • A decision by a referee or umpire in a game
  • verb
  • To make a request or order for action
  • (Animal) to make sounds to warn of danger
  • To announce the date of an election
  • To make a judgment about something
  • To give someone or something a name
  • To guess in advance the result or outcome
  • To visit a place or person for a short time
  • To phone someone
  • To speak, announce or shout in a loud voice

most

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US / məʊst /

UK / most /

A1
  • adverb
  • Very; extremely
  • Greatest possible degree
  • pronoun
  • Nearly all of something

where

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US / hwɛə /

UK / hwɛr, wɛr /

A1
  • conjunction
  • At or in the place which
  • In whatever place
  • pronoun
  • Word you use to ask the location of something

something

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US / ˈsʌmθɪŋ /

UK / ˈsʌmθɪŋ /

A1
  • adverb
  • In some degree or measure
  • noun
  • a person or thing of some value or consequence
  • pronoun
  • Thing that is not yet known or named
  • Approximately

from

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US / frəm /

UK / frʌm, frɑm,frəm /

A1
  • preposition
  • Starting at a particular place, time or level

cancer

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US / 'kænsə(r) /

UK / ˈkænsɚ /

B1
  • noun
  • Any growth caused by abnormal cell division

and

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US / ənd /

UK / ənd, ən,ænd /

A1
  • conjunction
  • Used to refer to two or more things
  • Plus; in addition; on top of that
  • Used to introduce an action that follows another

lot

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US / lɒt /

UK / lɑt /

A1
  • noun
  • What happens to a person in life from chance; fate
  • A group of people seen together
  • Item for sale at an auction
  • Small area of land used for a purpose e.g. parking

counter

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US / 'kaʊntə(r) /

UK / ˈkaʊntɚ /

B1
  • noun
  • A point in a discussion that puts an opposite view
  • A narrow table top for serving/preparing food
  • Person or device that adds the number of things
  • A token or flat piece used in games
  • prefix
  • Being opposite or against something
  • verb
  • To say or do something in opposition or resistance
  • To try to prevent, as by making a different point

stuff

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US / stʌf /

UK / stʌf /

A1
  • noun
  • Generic description for things, materials, objects
  • verb
  • To push material inside something, with force

amount

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US / ə'maʊnt /

UK / əˈmaʊnt /

A1
  • noun
  • Quantity of something
  • verb
  • To add up to a certain figure

ray

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US / reɪ /

UK / re /

B1
  • noun
  • Person's name
  • Lines of light coming from an object
  • Fish with a pointed tail and flat body

just

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US / dʒʌst /

UK / dʒʌst /

A1
  • adjecitve
  • Proper or appropriate; as is deserved
  • Doing or being what is right or fair
  • Legally correct; having enough evidence
  • adverb
  • Almost; nearly
  • Exactly at the time of
  • Exactly (the same as, like)

though

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US / ðəu /

UK / ðo /

A1
  • adverb
  • Although, despite the fact that

time

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US / taɪm /

UK / taɪm /

A1
  • noun
  • Speed at which music is played; tempo
  • Point as shown on a clock, e.g. 3 p.m
  • Number of hours, minutes needed to do something
  • Occasion when something happens
  • Period or occasion that something occurred
  • Period in history or the past
  • Something measured in minutes, hours, days, etc.
  • How long an event takes; duration
  • verb
  • To check speed at which music is performed
  • To choose a specific moment to do something
  • To measure how long an event takes, e.g. a race
  • To schedule something to occur at a specific moment

check

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US / tʃek /

UK / tʃɛk /

A1
  • adjecitve
  • Decorated with squares made up of lines
  • noun
  • Paper showing how much you owe at a restaurant
  • Printed piece of paper you sign to pay for things
  • A mark on a form, equivalent to 'yes'; tick
  • Mark used to show that something is correct
  • Procedure to prevent errors or control something
  • verb
  • To confirm the details of something are correct
  • To leave your things with staff who look after it
  • To examine something to see if something is wrong
  • To examine in order to prevent errors/a problem

light

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US / laɪt /

UK / laɪt /

A1
  • adjecitve
  • Being bright making it easy to see; not dark
  • Being pale and lacking darkness of color
  • Not heavy; weighing only a little
  • adverb
  • Carrying few bags when traveling
  • noun
  • A source of energy that makes a room or area bright
  • Way in which something or someone is understood
  • verb
  • To cause something to burn; put a burning match to
  • To provide a way to see ahead

never

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US / 'nevə(r) /

UK / ˈnɛvɚ /

A1
  • adverb
  • Not ever; not at any time

soil

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US / sɔɪl /

UK / sɔɪl /

B1
  • noun
  • Conditions in which something develops
  • Mix of natural material in which plants grow
  • Land of a certain country
  • verb
  • To get or become dirty

through

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US / θru: /

UK / θru /

A2
  • adjecitve
  • having finished using or doing something
  • adverb
  • From the beginning of something until the end
  • preposition
  • Over, in, across an entire thing or place
  • Allowing you to pass between, or to
  • By a particular way or process; by the use of

coincidence

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US / kəʊˈɪnsɪdəns /

UK / koʊˈɪnsɪdəns /

B1
  • noun
  • Occurrence by chance, not design or planned
  • State in which two ideas or opinions are the same

source

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US / sɔ:s /

UK / sɔrs, sors /

A2
  • adjecitve
  • Produces or provides what is wanted or needed
  • noun
  • Piece of information; a person giving information
  • Place from which something necessary comes
  • verb
  • To get, e.g. a raw material, from somewhere

cool

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US / ku:l /

UK / kul /

A1
  • adjecitve
  • Steady and calm when facing difficulties
  • Almost cold; not warm or hot
  • Smart or stylish in a way (young) people admire
  • Unfriendly in an indirect way; distant
  • verb
  • To make something decrease in temperature
  • (Of an emotion, etc.) to become less strongly felt

for

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US / fə(r) /

UK / fɔr,fə /

A1
  • preposition
  • Used to show the purpose, or need of something

fact

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US / fækt /

UK / fækt /

A1
  • noun
  • Something that is known or proved to be true

much

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US / mʌtʃ /

UK / mʌtʃ /

A1
  • adjecitve
  • Very; to a high level or degree
  • adverb
  • A lot; large amount; a high degree of
  • Nearly; basically
  • On many occasions; often
  • noun
  • A large amount; a great quantity

molecule

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US / ˈmɒlɪkju:l /

UK / ˈmɑlɪˌkjul /

B2
  • noun
  • Two or more atoms chemically combined

poisoning

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US / ˈpɔɪəznɪŋ , ˈpɔɪzənɪŋ /

UK / ˈpɔɪzənɪŋ /

A2
  • verb
  • To affect something in a very negative way
  • To hurt or kill with a dangerous substance

well

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US / wel /

UK / wɛl /

A1
  • adjecitve
  • Being in a fortunate, good condition or state
  • Healthy and in good condition
  • adverb
  • In an acceptable, proper, or successful manner
  • In a complete, total, or full manner
  • A great and considerable degree
  • In a successful way, in a good or satisfactory way
  • exclamation
  • Used to begin or continue a particular statement
  • Used to show you want to start saying something
  • Used to express that you are waiting for a reply
  • You say this to change the topic of a conversation
  • Used to indicate you are making a final remark
  • noun
  • Long deep hole in the ground to get water
  • verb
  • To cause your eyes to fill with tears

microwave

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US / ˈmaɪkrəweɪv /

UK / ˈmaɪkrəˌwev /

B1
  • noun
  • Cooking appliance using electromagnetic waves
  • Concerning electromagnetic radiation
  • verb
  • To heat or cook something in a microwave

worth

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US / wɜ:θ /

UK / wɚθ /

A2
  • other
  • the financial, practical or moral value of somebody/something
  • having a particular value, especially in money

usage

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US / ˈju:sɪdʒ /

UK / ˈjusɪdʒ, -zɪdʒ /

B2
  • noun
  • Amount something is used
  • Way something is actually used

leg

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US / leɡ /

UK / lɛɡ /

A1
  • noun
  • Part of the body from the hips down
  • The piece of furniture that touches the ground

why

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US / waɪ /

UK / hwaɪ, waɪ /

A1
  • adverb
  • Question word to ask for a reason
  • exclamation
  • (Used to express surprise or approval)

altitude

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US / 'æltɪtju:d /

UK / ˈæltɪˌtud,-ˌtjud /

B2
  • noun
  • Height of something above sea level

transmit

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US / trænsˈmɪt /

UK / trænsˈmɪt, trænz- /

B1
  • other
  • To broadcast by using signals to a radio/TV
  • verb
  • To broadcast by using signals to a radio/TV
  • To transfer data from one machine to another
  • To allow the passage of light
  • To transfer money to another person or place
  • To transfer a disease between people
  • To transfer to other people e.g. ownership of car

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

A1
  • adverb
  • Used to add new (often different) information

should

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US / ʃʊd /

UK / ʃʊd /

A1
  • other
  • Used to indicate what is proper or reasonable

too

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US / tu: /

UK / tu /

A1
  • adverb
  • In addition, also; with emphasis
  • Say that something is more than you want

gamma

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US / 'ɡæmə /

UK / ˈɡæmə /

B2
  • noun
  • Third letter of the Greek alphabet

healthy

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US / ˈhelθi /

UK / ˈhɛlθi /

A1
  • adjecitve
  • In good condition physically, or financially; well

rating

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US / ˈreɪtɪŋ /

UK / ˈretɪŋ /

A1
  • noun
  • The score derived from an assessment of something
  • verb
  • To assess something or consider its qualities

probably

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US / ˈprɒbəbli /

UK / ˈprɑbəbli /

A1
  • adverb
  • That is likely to happen or be true

guess

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US / ɡes /

UK / ɡɛs /

A1
  • noun
  • Answer given when you don't know if it is correct
  • verb
  • To give an answer without knowing if it is correct

distinction

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US / dɪˈstɪŋkʃn /

UK / dɪˈstɪŋkʃən /

A2
  • noun
  • Special quality that makes something different
  • A prize of award for a high level of achievement

many

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US / 'menɪ /

UK / ˈmɛni /

A1
  • determiner
  • Used to refer a large number of things

radioactive

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US / ˌreɪdɪəʊ'æktɪv /

UK / ˌredioˈæktɪv /

B2
  • adjecitve
  • Emitting harmful energy from nuclear activity

particle

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US / ˈpɑ:tɪkl /

UK / ˈpɑrtɪkəl /

B1
  • noun
  • Adverb or preposition that joins with a verb
  • Tiny piece or quantity of something

radiate

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US / ˈreɪdieɪt /

UK / ˈrediˌet /

B1
  • verb
  • To show a lot of feeling clearly
  • To spread out from a center
  • To emit something like a wave

itself

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US / ɪtˈself /

UK / ɪtˈsɛlf /

A1
  • pronoun
  • Referring to it

exactly

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US / ɪgˈzæktli /

UK / ɪɡˈzæktli /

A1
  • adverb
  • No more and no less than; precisely

use

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US / ju:s /

UK / ju:s /

A1
  • noun
  • Ability to employ something
  • Need to enable it to work
  • Permission to do something with something
  • Act of spending money
  • Operation of a machine for its function
  • verb
  • To have; to eat, drink, consume etc.
  • To need to operate or work
  • To operate a machine, e.g. a computer
  • To treat a person badly
  • To do something with, for a task or purpose

area

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US / 'eərɪə /

UK / ˈɛriə /

A1
  • noun
  • Amount of measured space
  • A specific section or space; part of a region
  • A subject or field of study

eat

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US / i:t /

UK / it /

A1
  • verb
  • To put food in your mouth

electronic

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US / ɪˌlek'trɒnɪk /

UK / ɪlɛkˈtrɑnɪk, ˌilɛk- /

A2
  • adjecitve
  • Operating by use of electricity; digital
  • Subtitles section
  • What is radiation?
  • Isn't it a bad type of poisoning?
  • It's just like a dirty word to me.
  • It's just something which is not good.
  • Not good for me, being a human, being exposed to great amounts of it.
  • Waves of bad stuff.
  • Yeah, I mean, it's dangerous.
  • We all know that, right?
  • Water's good for you, radiation's not.
  • Easy.
  • It can go right through, like, walls.
  • Radiation can seep through the concrete walls and...
  • So it goes, it's absorbed into your skin and then you get poisoning from it.
  • The radiation itself could damage the DNA.
  • Changing, like, I guess mutations.
  • Mutations.
  • It ruins tissues and whatnot and that can break down the body and it's not healthy.
  • It causes, like, cancer and things like that.
  • Are you exposed to radiation?
  • No. Not at all?
  • No. Um...
  • No. Probably in some ways.
  • But you don't know exactly how?
  • No, not really.
  • From the sun?
  • Mobile phones, they tell us.
  • Yeah, probably from a lot of electronic sources.
  • Microwaves and things.
  • Microwaves, mobile phones.
  • Yeah, cell phones.
  • Are they cancer-causing, do you think?
  • I think they are because, um...
  • Yeah, I mean, like, a lot of people have come up with, like, you know, cancer tumours around the ear area recently and, um, I think that's too much of a coincidence to not be involved with the mobile phone usage.
  • I think that it does but it doesn't affect my day-to-day life and, you know, where I put my phone and I still carry it in my pocket even though I might get cancer in my leg.
  • I mean, it's not changing my life.
  • UV rays.
  • Gamma.
  • X-rays.
  • Gamma.
  • Alpha.
  • Beta.
  • Alpha, beta, gamma, yeah.
  • All right, let's take a closer look at these examples.
  • They are all, in fact, types of radiation.
  • Assuming by mobile phones we mean the waves that they transmit, which are microwaves.
  • But there are some important distinctions between these different types of radiation.
  • For example, alpha and beta rays are actually tiny particles moving very fast whereas the rest of these types of radiation are all waves very similar to light.
  • So let's arrange them by particles on the right and waves on the left.
  • Another very important distinction is between the radiation that can do damage to molecules like DNA and radiation that can't.
  • So let's rearrange the radiation into these groups.
  • So the damaging radiation includes UV rays, X-rays, gamma rays, and alpha and beta particles.
  • So sunlight and microwaves, including the waves used by mobile phones, should not be able to cause damage to molecules.
  • So where is most of your exposure to damaging radiation coming from?
  • Well, for one thing, there are radioactive isotopes in the soil and in the air that we breathe, so we get a very low level of background radiation from these sources.
  • Also, every time we take a plane trip, we're exposed to higher levels of what's called cosmic radiation, which are particles that are streaming towards us from outer space.
  • Normally, these are blocked out by the atmosphere, but at the high altitudes that planes fly at, we're exposed to more of this radiation.
  • Every time you get an X-ray at the dentist or to check for broken bones, that also gives you a significant dose of radiation.
  • But generally, the levels of radiation that we're exposed to are so low that it's not worth worrying about.
  • Bananas are radioactive.
  • Why is that?
  • They have potassium 40. Potassium.
  • And so if you eat too many bananas, you can get ratings off a Geiger counter.
  • Do you eat bananas?
  • I do.
  • I love bananas.
  • And I'm still fine, I guess.
  • It never puts you off the thought that it could be radiating you.
  • It's kind of cool, to be honest.
  • Like radioactive powers or something.